Hairdryer



FIG. 1 is a right side elevational view of a hairdryer showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is an exploded left side elevational view thereof; and,

FIG. 6 is a perspective view thereof. 

The ornamental design for a hairdryer, as described. 